Zone · Wire connectors · Waterproof wire nuts, direct bury
Waterproof wire nuts, direct bury
Silicone-filled waterproof wire nuts, listed to UL 486G for direct burial: R3 and R6, for 20–10 AWG and 20–8 AWG.
- Zone SKUs
- R3 · R6
- Wire range
- 20–10 AWG · 20–8 AWG
- UL listing
- UL 486G (R3, R6)
- Listings
- 6 on Amazon, in packs of 20, 25, 50, 100
Not sure which type? Which connector fits your wires: enter the wires you are joining and see which Zone connectors list them on the box.
Every waterproof wire nuts, direct bury listing
| Connector | Zone SKU | Colour | Wire range | Listing | Pack | ||
|---|---|---|---|---|---|---|---|
 | Waterproof wire nut, silicone-filled | R3 | — | 20–10 AWG | UL 486G · direct bury | 100 | Buy on Amazon ↗ |
| Waterproof wire nut, silicone-filled | R3 | — | 20–10 AWG | UL 486G · direct bury | 25 | Buy on Amazon ↗ |
| Waterproof wire nut, silicone-filled | R3 | — | 20–10 AWG | UL 486G · direct bury | 50 | Buy on Amazon ↗ |
 | Waterproof wire nut, silicone-filled | R6 | — | 20–8 AWG | UL 486G · direct bury | 100 | Buy on Amazon ↗ |
| Waterproof wire nut, silicone-filled | R6 | — | 20–8 AWG | UL 486G · direct bury | 20 | Buy on Amazon ↗ |
| Waterproof wire nut, silicone-filled | R6 | — | 20–8 AWG | UL 486G · direct bury | 50 | Buy on Amazon ↗ |
Wire range, listing and pack as Zone publishes them on each Amazon listing. Customer reviews are read on the listing itself; this site does not reproduce them.
What UL 486G direct bury means
UL 486G covers sealed splicing connectors: the tests for an ordinary twist-on cap, plus moisture ingress, for damp, wet and direct-burial locations. Both Zone silicone-filled caps (R3, R6) carry it, as published on their listings.
Typical splices that sit underground or outside: a run to a post light, landscape lighting and other low-voltage wiring, and splices in a damp junction box. The listing is UL 486G direct bury; it is not a separate approval for any one system, such as irrigation controls. Check the listing and your local code for the job.
Are wire nuts waterproof? Zone’s standard twist-on wire nuts are listed to UL 486C, which does not include the moisture test. For a wet or buried splice, use a cap listed to UL 486G.
Which connectors can go in the ground, and which can’t: direct burial wire connectors explained.